Error On Setcontentviewr.layout.main
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up setContentView(R.layout.main); error up vote 6 down vote favorite 1 package com.elfapp; import android.app.Activity; import android.content.Intent; import android.os.Bundle; import android.util.Log; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button; import android.widget.EditText; import android.widget.Toast; public class MainActivity extends Activity implements OnClickListener { private Button btn_Login; private EditText et_UserName; public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); btn_Login = (Button) findViewById(R.id.button_login); btn_Login.setOnClickListener(this); et_UserName = (EditText) findViewById(R.id.editText_userName); } public void onClick(View v) { if (v.equals(btn_Login)) { // skriver ut en toast när man klickar på knappen Toast.makeText(MainActivity.this, "Ansluter till server...", Toast.LENGTH_SHORT).show(); // används i debuggern för att påvisa att programmet exekverat hit Log.v("ThisApp", "onClick Successful"); // TODO skickar det som står i et_UserName till controller (genom TCP/IP), som ska kolla om användaren finns // send et_UserName.getText().toString() to controller // if(username exists) Intent intent = new Intent(this, RoomActivity.class); this.startActivity(intent); } } } I'm getting an error on the line containing setContentView(R.layout.main); Not sure about what the error/exception is because I'm not used to working in Eclipse.. java android eclipse share|improve this question edited May 14 '11 at 16:39 Igor Filippov 7,8591263128 asked May 14 '11 at 15:21 Petrus K. 52031231 Where's your error? –MByD May 14 '11 at 15:32 1 Does main layout exist? –Egor May 14 '11 at 15:38 Yep, it's in res/layout/ and I even made sure it's saved and updated by ctrl+S –Petrus K. May 14 '11 at 15:42 Click Window-Show View - Onther-Android-Logcat(Lagcat tab will appear) and watch your errors there. –Igor Filippov May 14 '11 at 15:44 Seems you don't have runtime error, my previous comment wont help;) Anyway, there
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is http://stackoverflow.com/questions/6002756/setcontentviewr-layout-main-error a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up setContentView(R.layout.Main); Main cannot be resolved or is not a field up vote 3 down vote favorite This is a simple program for beginning (simple for you, not for me) eclipse. I want http://stackoverflow.com/questions/12715221/setcontentviewr-layout-main-main-cannot-be-resolved-or-is-not-a-field to change a text by clicking on a button, but it's not working. Here is the code: package com.example.androidcourse; import android.app.Activity; import android.os.Bundle; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button; import android.widget.TextView; import android.R.layout; public class MainActivity extends Activity { @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.Main); Button btn = (Button) findViewById(R.id.but_action); final TextView text = (TextView) findViewById(R.id.txt_caption); btn.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { text.setText("New bingo..."); } }); } } android android-widget javadoc share|improve this question edited Oct 4 '12 at 12:05 Anthony Grist 31k33963 asked Oct 3 '12 at 19:11 max 93331227 add a comment| 4 Answers 4 active oldest votes up vote 8 down vote accepted First just build your project. If it will not work, then delete from imports android.R.layout and use layout from your package. share|improve this answer edited May 3 at 17:38 planetmaker 2,33021121 answered Oct 4 '12 at 12:08 ania 2,0131420 2 To elaborate for posteri
here for a quick overview of the site Help Center Detailed answers http://stackoverflow.com/questions/34962487/error-setcontentviewr-layout-main-in-android-studio to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business Learn https://www.quora.com/What-does-setContentView-R-layout-main-do-What-layout-it-will-set-What-is-this-mean-R-layout-main more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow error on Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up Error: setContentView(R.layout.main) in Android Studio up vote 1 down vote favorite 1 I'm developing a simple app for learning purpose, In which there is a error on setcontentviewr.layout.main single check box and a text line, which shows it is checked or unchecked. But it shows an error in line setContentView(R.layout.main) and cb=(CheckBox)findViewById(R.id.check) this is my java code: package com.example.kaushal.checkbox; import android.app.Activity; import android.os.Bundle; import android.widget.CheckBox; import android.widget.CompoundButton; import android.R; public class Checkbox extends Activity implements CompoundButton.OnCheckedChangeListener { CheckBox cb; @Override public void onCreate(Bundle icicle) { super.onCreate(icicle); setContentView(R.layout.main); cb=(CheckBox)findViewById(R.id.check); cb.setOnCheckedChangeListener(this); } public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) { if (isChecked) { cb.setText("This checkbox is: checked"); } else { cb.setText("This checkbox is: unchecked"); } } } It is not a duplicate question,I've seen the answers of the same questions but it was all for eclipse.I'm working with android studio. This is my xml layout code: